Perhaps you should try some spelling variations:
doanh thu » doanh tai
cua triet » cua viet, su triet, va triet
cham luc » cham soc, nhan luc, cham cuu
te sach » toc sach
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
danh tu » anh tu
y tang » ky tang, 6 tang, 7 tang
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc va, tuc va, loc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y tang ma hoi. hieu ve cham luc va ((danh tu) OR (doanh thu)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y tang ma hoi. hieu ve cham luc va ((danh tu) OR (doanh thu)) cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach y tang ma hoi. hieu ve cham luc va ((danh tu) OR (doanh thu)) cua triet*.